CVE-2012-6657

Public Exploit

Description

The sock_setsockopt function in net/core/sock.c in the Linux kernel before 3.5.7 does not ensure that a keepalive action is associated with a stream socket, which allows local users to cause a denial of service (system crash) by leveraging the ability to create a raw socket.

Category

4.9
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 0.12%
Vendor Advisory marc.info Vendor Advisory opensuse.org Vendor Advisory marc.info Vendor Advisory opensuse.org Vendor Advisory kernel.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.5.7 vendor advisory
http://marc.info/?l=bugtraq&m=142722450701342&w=2 vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00000.html vendor advisory
http://marc.info/?l=bugtraq&m=142722544401658&w=2 vendor advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1141742
https://github.com/torvalds/linux/commit/3e10986d1d698140747fcfc2761ec9cb64c1d582 exploit
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=3e10986d1d698140747fcfc2761ec9cb64c1d582
http://www.openwall.com/lists/oss-security/2014/09/15/8 mailing list
http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00020.html vendor advisory

Frequently Asked Questions

What is the severity of CVE-2012-6657?
CVE-2012-6657 has been scored as a medium severity vulnerability.
How to fix CVE-2012-6657?
To fix CVE-2012-6657, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2012-6657 being actively exploited in the wild?
It is possible that CVE-2012-6657 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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